Audi A8 (D3/E4) brake light switch replacement
 

Hi folks, I would like to replace the brake light switch on my 2005 A8. I was not able to find instruction for this particular car, I saw some for an Audi A6, but I'm wondering if there's anything I need to consider for my car. For example, what shall I remove to access the brake light switch, if anything, and how do I go about doing that?
Thanks .